[GHC] #9010: TemplateHaskell leads to an "unknown symbol" error

[GHC]

#9010: TemplateHaskell leads to an "unknown symbol" error
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        Reporter:  Feuerbach         |                Owner:
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by basvandijk):

 Hi Ben, I created a minimal isolated test case that has the same problem:

 `git clone https://github.com/basvandijk/th-unknown-symbol-test`

 If you're using Nix a simple `nix-build` will show the problem.

 If you aren't using Nix you have to install `hs-opencv-binding` yourself
 (probably in a cabal sandbox) and build `play` manually.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9010#comment:6>
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